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322
display/epdconfig.py
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322
display/epdconfig.py
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# /*****************************************************************************
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# * | File : epdconfig.py
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# * | Author : Waveshare team
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# * | Function : Hardware underlying interface
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# * | Info :
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# *----------------
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# * | This version: V1.2
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# * | Date : 2022-10-29
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# * | Info :
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# ******************************************************************************
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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import os
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import logging
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import sys
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import time
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import subprocess
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from ctypes import *
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logger = logging.getLogger(__name__)
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class RaspberryPi:
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# Pin definition
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RST_PIN = 17
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DC_PIN = 25
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CS_PIN = 8
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BUSY_PIN = 24
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PWR_PIN = 18
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MOSI_PIN = 10
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SCLK_PIN = 11
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def __init__(self):
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import spidev
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import gpiozero
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self.SPI = spidev.SpiDev()
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self.GPIO_RST_PIN = gpiozero.LED(self.RST_PIN)
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self.GPIO_DC_PIN = gpiozero.LED(self.DC_PIN)
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# self.GPIO_CS_PIN = gpiozero.LED(self.CS_PIN)
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self.GPIO_PWR_PIN = gpiozero.LED(self.PWR_PIN)
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self.GPIO_BUSY_PIN = gpiozero.Button(self.BUSY_PIN, pull_up = False)
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def digital_write(self, pin, value):
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if pin == self.RST_PIN:
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if value:
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self.GPIO_RST_PIN.on()
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else:
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self.GPIO_RST_PIN.off()
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elif pin == self.DC_PIN:
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if value:
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self.GPIO_DC_PIN.on()
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else:
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self.GPIO_DC_PIN.off()
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# elif pin == self.CS_PIN:
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# if value:
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# self.GPIO_CS_PIN.on()
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# else:
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# self.GPIO_CS_PIN.off()
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elif pin == self.PWR_PIN:
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if value:
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self.GPIO_PWR_PIN.on()
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else:
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self.GPIO_PWR_PIN.off()
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def digital_read(self, pin):
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if pin == self.BUSY_PIN:
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return self.GPIO_BUSY_PIN.value
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elif pin == self.RST_PIN:
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return self.RST_PIN.value
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elif pin == self.DC_PIN:
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return self.DC_PIN.value
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# elif pin == self.CS_PIN:
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# return self.CS_PIN.value
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elif pin == self.PWR_PIN:
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return self.PWR_PIN.value
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def delay_ms(self, delaytime):
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time.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.SPI.writebytes(data)
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def spi_writebyte2(self, data):
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self.SPI.writebytes2(data)
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def DEV_SPI_write(self, data):
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self.DEV_SPI.DEV_SPI_SendData(data)
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def DEV_SPI_nwrite(self, data):
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self.DEV_SPI.DEV_SPI_SendnData(data)
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def DEV_SPI_read(self):
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return self.DEV_SPI.DEV_SPI_ReadData()
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def module_init(self, cleanup=False):
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self.GPIO_PWR_PIN.on()
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if cleanup:
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find_dirs = [
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os.path.dirname(os.path.realpath(__file__)),
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'/usr/local/lib',
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'/usr/lib',
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]
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self.DEV_SPI = None
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for find_dir in find_dirs:
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val = int(os.popen('getconf LONG_BIT').read())
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logging.debug("System is %d bit"%val)
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if val == 64:
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so_filename = os.path.join(find_dir, 'DEV_Config_64.so')
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else:
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so_filename = os.path.join(find_dir, 'DEV_Config_32.so')
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if os.path.exists(so_filename):
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self.DEV_SPI = CDLL(so_filename)
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break
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if self.DEV_SPI is None:
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RuntimeError('Cannot find DEV_Config.so')
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self.DEV_SPI.DEV_Module_Init()
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else:
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# SPI device, bus = 0, device = 0
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self.SPI.open(0, 0)
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self.SPI.max_speed_hz = 4000000
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self.SPI.mode = 0b00
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return 0
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def module_exit(self, cleanup=False):
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logger.debug("spi end")
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self.SPI.close()
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self.GPIO_RST_PIN.off()
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self.GPIO_DC_PIN.off()
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self.GPIO_PWR_PIN.off()
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logger.debug("close 5V, Module enters 0 power consumption ...")
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if cleanup:
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self.GPIO_RST_PIN.close()
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self.GPIO_DC_PIN.close()
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# self.GPIO_CS_PIN.close()
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self.GPIO_PWR_PIN.close()
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self.GPIO_BUSY_PIN.close()
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class JetsonNano:
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# Pin definition
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RST_PIN = 17
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DC_PIN = 25
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CS_PIN = 8
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BUSY_PIN = 24
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PWR_PIN = 18
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def __init__(self):
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import ctypes
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find_dirs = [
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os.path.dirname(os.path.realpath(__file__)),
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'/usr/local/lib',
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'/usr/lib',
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]
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self.SPI = None
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for find_dir in find_dirs:
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so_filename = os.path.join(find_dir, 'sysfs_software_spi.so')
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if os.path.exists(so_filename):
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self.SPI = ctypes.cdll.LoadLibrary(so_filename)
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break
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if self.SPI is None:
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raise RuntimeError('Cannot find sysfs_software_spi.so')
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import Jetson.GPIO
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self.GPIO = Jetson.GPIO
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def digital_write(self, pin, value):
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self.GPIO.output(pin, value)
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def digital_read(self, pin):
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return self.GPIO.input(self.BUSY_PIN)
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def delay_ms(self, delaytime):
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time.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.SPI.SYSFS_software_spi_transfer(data[0])
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def spi_writebyte2(self, data):
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for i in range(len(data)):
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self.SPI.SYSFS_software_spi_transfer(data[i])
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def module_init(self):
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self.GPIO.setmode(self.GPIO.BCM)
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self.GPIO.setwarnings(False)
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self.GPIO.setup(self.RST_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.DC_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.CS_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.PWR_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.BUSY_PIN, self.GPIO.IN)
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self.GPIO.output(self.PWR_PIN, 1)
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self.SPI.SYSFS_software_spi_begin()
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return 0
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def module_exit(self):
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logger.debug("spi end")
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self.SPI.SYSFS_software_spi_end()
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logger.debug("close 5V, Module enters 0 power consumption ...")
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self.GPIO.output(self.RST_PIN, 0)
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self.GPIO.output(self.DC_PIN, 0)
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self.GPIO.output(self.PWR_PIN, 0)
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self.GPIO.cleanup([self.RST_PIN, self.DC_PIN, self.CS_PIN, self.BUSY_PIN, self.PWR_PIN])
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class SunriseX3:
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# Pin definition
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RST_PIN = 17
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DC_PIN = 25
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CS_PIN = 8
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BUSY_PIN = 24
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PWR_PIN = 18
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Flag = 0
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def __init__(self):
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import spidev
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import Hobot.GPIO
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self.GPIO = Hobot.GPIO
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self.SPI = spidev.SpiDev()
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def digital_write(self, pin, value):
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self.GPIO.output(pin, value)
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def digital_read(self, pin):
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return self.GPIO.input(pin)
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def delay_ms(self, delaytime):
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time.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.SPI.writebytes(data)
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def spi_writebyte2(self, data):
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# for i in range(len(data)):
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# self.SPI.writebytes([data[i]])
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self.SPI.xfer3(data)
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def module_init(self):
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if self.Flag == 0:
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self.Flag = 1
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self.GPIO.setmode(self.GPIO.BCM)
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self.GPIO.setwarnings(False)
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self.GPIO.setup(self.RST_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.DC_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.CS_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.PWR_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.BUSY_PIN, self.GPIO.IN)
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self.GPIO.output(self.PWR_PIN, 1)
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# SPI device, bus = 0, device = 0
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self.SPI.open(2, 0)
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self.SPI.max_speed_hz = 4000000
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self.SPI.mode = 0b00
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return 0
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else:
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return 0
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def module_exit(self):
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logger.debug("spi end")
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self.SPI.close()
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logger.debug("close 5V, Module enters 0 power consumption ...")
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self.Flag = 0
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self.GPIO.output(self.RST_PIN, 0)
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self.GPIO.output(self.DC_PIN, 0)
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self.GPIO.output(self.PWR_PIN, 0)
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self.GPIO.cleanup([self.RST_PIN, self.DC_PIN, self.CS_PIN, self.BUSY_PIN], self.PWR_PIN)
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if sys.version_info[0] == 2:
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process = subprocess.Popen("cat /proc/cpuinfo | grep Raspberry", shell=True, stdout=subprocess.PIPE)
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else:
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process = subprocess.Popen("cat /proc/cpuinfo | grep Raspberry", shell=True, stdout=subprocess.PIPE, text=True)
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output, _ = process.communicate()
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if sys.version_info[0] == 2:
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output = output.decode(sys.stdout.encoding)
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if "Raspberry" in output:
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implementation = RaspberryPi()
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elif os.path.exists('/sys/bus/platform/drivers/gpio-x3'):
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implementation = SunriseX3()
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else:
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implementation = JetsonNano()
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for func in [x for x in dir(implementation) if not x.startswith('_')]:
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setattr(sys.modules[__name__], func, getattr(implementation, func))
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### END OF FILE ###
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